Poly(butylene terephthalate) Reinforced with 30% Glass Beads (PBT+GB30)

Alternative and trade names
Ultradur®, Bergadur™
.XLSX
.PDF
Save

Description

Reinforced Poly(butylene terephthalate) with 30% glass bead for low-warpage technical parts and depending on the grade with flame retardant based in halogene and good surface finish.

Properties

General

Density ρ

1.49 - 1.55 g/cm³ at 20 °C

Mechanical

Elastic modulus E

3.5 - 6.5 GPa at 20 °C

Elongation A

2 - 6 % at 20 °C

Impact strength, Charpy notched Ivnot

2 - 5 kJ/m² at 20 °C

Impact strength, Charpy unnotched Iunnot

20 - 60 kJ/m² at 20 °C

Max allowed stress σmax

50 - 80 MPa at 20 °C

at 2-6% strain

Thermal

Coefficient of thermal expansion α

7E-5 - 1E-4 1/K at 20 °C

Flammability

UL 94 HB

Max service temperature, short Tmaxshort

200 °C

Melting point Tm

220 - 225 °C

Specific heat capacity cp

1500 J/(kg·K) at 20 °C

Thermal conductivity λ

0.27 W/(m·K) at 20 °C

Electrical

Dielectric constant εr

3.5 - 4.5 [-] at 20 °C

Electrical resistivity ρel

1.00E+14 Ω·m at 20 °C

Optical

Transparency

no

Technological properties

Application areas

Optical instruments, gas meter housings

Fillers

30% Glass Beads

Processing methods

Injection molding

This material data has been provided by M-Base.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.